Success stories

Brembate WWTP (Italy)

Aeration energy and cost efficiency

Brembate WWTP (Italy)

Plant characteristics

  • Design flow: 53.000 m3/d
  • Biological treatment: 2x plug-flow reactors
  • Aeration system: 2+1 turbo compressors (110 kW/Unit)
  • Effluent discharge consent:
    • BOD5 < 10 mgO2/L
    • COD < 60 mgO2/L
    • TSS < 15 mg/L
    • TN < 10 mgN/L (annual average)
    • N-NH4 < 30% of total nitrogen
    • TP < 1 mgP/L

Challenge

  • To reduce the aeration costs whilst ensuring the effluent quality.

CREApro® platform fitted with self-customized process intelligence tools and editable control configuration settings : an every day operation control as well as a strategic tool. Intelligent control loops included and tailored:

Solution implemented

  • N-control module, including

    Dynamic DO setpoint strategy (independent per lane)
    Dynamic NH4 setpoint strategy (independent per lane)
    Nitrification / Denitrification cycles (intermittent aeration strategy)
    Energy cost via a tariff strategy for further monetary savings
    Dynamic compressors control
    Dynamic mixers management

KPIs

100%

Effluent quality compliance

25%

Aeration energy savings

13%

Total plant energy savings

100%

Robustness and reliability

Feedback from the user

“The platform has been financed by Createch360º, and the retribution based on software performance. The savings achieved have been significantly higher than expected, and effluent quality continuously achieved, so 0€ investment, and no more worries about process behavior. Createch360º team does remote assistance, and is continuously improving and adapting software benefits considering any changes in aeration equipment, mixers or new measurement sensors. Once the platform cost is paid (32 months) Createch360º will continue the assistance and supervision of the system with a maintenance contract.”

Dott. Ing. Yafet Ambrossini, Responsabile Ufficio Tecnico, Depurazione Uniacque

Brembate WWTP (Italy)